Fullerene decomposition induced by near-infrared laser radiation studied by real-time turbidimetry

L. Juha, B. Ehrenberg, S. Couris, E. Koudoumas, V. Hamplová, Z. Pokorná, A. Müllerová, M. Pavel

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C60 and C70 fullerenes dissolved in toluene or n-hexane have been found to be decomposed by near-infrared Nd:YAG laser radiation even at moderate intensities (λ=1064 nm, I=35-70 MW/cm2) quite effectively. Formation of a fine precipitate, occurring during the photolysis, has been studied turbidimetrically. Cubic intensity dependence of the decomposition efficiency was found. The multiphoton dissociation of fullerenes leads to a formation of the fine black precipitate whose particles, overheated by the pulsed laser radiation, cause further decomposition of fullerene cages.

Original languageEnglish
Pages (from-to)431-436
Number of pages6
JournalChemical Physics Letters
Issue number3-4
StatePublished - 12 Nov 1999

Bibliographical note

Funding Information:
L.J., V.H., Z.P., A.M. and M.P. are grateful to the Czech Ministry of Education for support of this work under contract ME328. L.J. thanks Bar-Ilan University for postdoctoral fellowship and hospitality in academic year 1997/1998 when a part of this Letter was written and the experiments with the DCR-11 Nd:YAG laser were carried out. Finally, S.C. and E.K. would like to thank the ULF facility operating at FORTH-IESL (Contr. Nr. ERBFMGECT 950021) for support and Quantel for the loan of the Brilliant Nd:YAG laser.


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